* 75mm with protection** 600mm for Outdoor Modules*** Only applies if one or both terminals are balanced flues

Clearance for Balanced Flues

Distance measured to rim of terminal.

Clearances recommended by Grant NI in accordance with British Standards and Building Regulations.

The Terminal should be positioned so as to avoid products of combustion accumulating in stagnant pockets around the building or entering into buildings. Care should also be taken that the plume from a condensing flue does not cause a nuisance.

1. An opening means an openable element, such as a window, or a permanent opening such as a permanently open air vent.

2. Not withstanding the dimensions given, a terminal should be at least 300mm from combustible material. eg. a window frame.

3. A way of providing protection of combustible material would be to fit a heat shield at least 750mm wide.